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DNA Structure and Replication

DNA Structure and Replication
DNA with a G-C content of 50% will melt at approximately

70 °C
60°C
100 °C
90 °C

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DNA Structure and Replication
DNA replication takes place in which direction?

5 'to 3'
3' to 5'
Vary from organism to organism
Randomly

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DNA Structure and Replication
Which enzyme catalyzes the elongation of DNA molecules?

Helicase
DNA ligase
DNA polymerase
Primase

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DNA Structure and Replication
30 nm wide helix with five or six nucleosomes per helix is known as

kinoplast
none of these
halonoid
solenoid

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DNA Structure and Replication
Number of times the two DNA strands are interwined in circular DNA and is known as

twisting number
none of these
linking number
helix frequency

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DNA Structure and Replication
There is a single origin for DNA replication in bacteria. How many origins of replication are found in the much larger genomes of eukaryotes such as mammals?

none of these
Thousands and tens of thousands
About 100
One

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